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Deformation of rocks containing melts and their distribution 2009

Deformation of rocks containing melts and their distribution 2009. David Mainprice UMR Géosciences, Université Montpellier 2 France. Number of students falling a sleep. Critical Melt Fraction (CMF). Renner et al.EPSL 2000.

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Deformation of rocks containing melts and their distribution 2009

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  1. Deformation of rocks containing melts and their distribution 2009 David Mainprice UMR Géosciences, Université Montpellier 2 France Number of students falling a sleep

  2. Critical Melt Fraction (CMF) Renner et al.EPSL 2000

  3. Kohlstedt & Holtzman 2008 Annu. Rev. Earth Planet. Sci. 2009. 37:561–93

  4. Viscosity vs Melt fraction

  5. Shear Experiments Holtzman 2007 per. com.

  6. B-type fabrics with MORB + chromite Holtzman 2007 per. com.

  7. Strength of CPO Kohlstedt & Holtzman 2008 Annu. Rev. Earth Planet. Sci. 2009. 37:561–93

  8. Role of chromite: permeability k -> compaction length Holtzman 2007 per. com.

  9. Strainpartitioning in partiallymolten rocks Holtzman 2007 per. com.

  10. Holtzman 2007 per. com.

  11. Compaction Length vs Sample Length • melt segregated into melt-enriched bands in samples that had initial compaction lengths less than or on the order of the sample thickness. • Compaction length (δc) D. McKenzie(EPSL,1984) : Length scale over which φ decreases to φ/e, solid-fluid flow are coupled, melt pressure and melt fraction gradients can be sustained. • The compaction length (δc) of a partially molten sample is determined by the permeability, k, the melt viscosity, μ, the bulk viscosity, λ, and the shear viscosity, η, of the partially molten rock as

  12. Compaction Length vs SampleLength Holtzman et al (2003) Geochem. Geophys. Geosyst.

  13. Band spacing vs Compaction Length Kohlstedt & Holtzman 2008 Annu. Rev. Earth Planet. Sci. 2009. 37:561–93

  14. Holtzman et al (2003) Geochem. Geophys. Geosyst.

  15. Holtzman 2007 per. com.

  16. Holtzman 2007 per. com.

  17. Kohlstedt & Holtzman 2008 Annu. Rev. Earth Planet. Sci. 2009. 37:561–93

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